<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import echarts from 'echarts'
require('echarts-wordcloud')
require('echarts/theme/macarons') // echarts theme
import { debounce } from '@/utils'
export default {
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '300px'
    }
  },
  data () {
    return {
      chart: null
    }
  },
  mounted () {
    this.initChart()
    this.__resizeHandler = debounce(() => {
      if (this.chart) {
        this.chart.resize()
      }
    }, 100)
    window.addEventListener('resize', this.__resizeHandler)
  },
  beforeDestroy () {
    if (!this.chart) {
      return
    }
    window.removeEventListener('resize', this.__resizeHandler)
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    initChart () {
      this.chart = echarts.init(this.$el, 'macarons')
      const data = [{
        name: '花鸟市场',
        value: 1446
      },
      {
        name: '汽车',
        value: 928
      },
      {
        name: '视频',
        value: 906
      },
      {
        name: '电视',
        value: 825
      },
      {
        name: 'Lover Boy',
        value: 514
      },
      {
        name: '动漫',
        value: 486
      },
      {
        name: '音乐',
        value: 53
      },
      {
        name: '直播',
        value: 163
      },
      {
        name: '广播电台',
        value: 86
      },
      {
        name: '戏曲曲艺',
        value: 17
      },
      {
        name: '演出票务',
        value: 6
      },
      {
        name: '给陌生的你听',
        value: 1
      },
      {
        name: '资讯',
        value: 1437
      },
      {
        name: '商业财经',
        value: 422
      },
      {
        name: '娱乐八卦',
        value: 353
      },
      {
        name: '军事',
        value: 331
      },
      {
        name: '科技资讯',
        value: 313
      },
      {
        name: '社会时政',
        value: 307
      },
      {
        name: '时尚',
        value: 43
      },
      {
        name: '网络奇闻',
        value: 15
      },
      {
        name: '旅游出行',
        value: 438
      },
      {
        name: '景点类型',
        value: 957
      },
      {
        name: '国内游',
        value: 927
      },
      {
        name: '远途出行方式',
        value: 908
      },
      {
        name: '酒店',
        value: 693
      },
      {
        name: '关注景点',
        value: 611
      },
      {
        name: '旅游网站偏好',
        value: 512
      },
      {
        name: '出国游',
        value: 382
      }]
      this.chart.setOption({
        backgroundColor: '#fff',
        tooltip: {
          show: false
        },
        series: [{
          type: 'wordCloud',
          gridSize: 1,
          sizeRange: [12, 55],
          rotationRange: [-45, 0, 45, 90],
          textStyle: {
            normal: {
              color: function () {
                return 'rgb(' +
                  Math.round(Math.random() * 255) +
                  ', ' + Math.round(Math.random() * 255) +
                  ', ' + Math.round(Math.random() * 255) + ')'
              }
            }
          },
          left: 'center',
          top: 'center',
          right: null,
          bottom: null,
          data: data
        }]
      })
    }
  }
}
</script>
